1. json字符串—–>json对象

    • 使用JSON.parse()函数

      var jsonStr = \'{"name":"zhangsan","age":23,"email":"chentging@aliyun.com"}\';
var json = JSON.parse(jsonStr);
console.log(json);//输出:Object {name: "zhangsan", age: 23, email: "chentging@aliyun.com"}

    • 使用eval()函数

      var jsonStr = \'{"name":"zhangsan","age":23,"email":"chentging@aliyun.com"}\';
var json = eval ("(" + jsonStr + ")");
console.log(json);//输出:Object {name: "zhangsan", age: 23, email: "chentging@aliyun.com"}

    • 使用jQuery插件jQuery.parseJSON()

      var jsonStr = \'{"name":"zhangsan","age":23,"email":"chentging@aliyun.com"}\';
var json = jQuery.parseJSON(jsonStr);
console.log(json);//输出:Object {name: "zhangsan", age: 23, email: "chentging@aliyun.com"}
  2. json对象——>json字符串

  • 使用JSON.stringify()

    var json = {name: "zhangsan", age: 23, email: "chentging@aliyun.com"};
var jsonStr = JSON.stringify(json);
console.log(jsonStr);//输出:"{"name":"zhangsan","age":23,"email":"chentging@aliyun.com"}"
  • 把数据在前后端之间传递，需要把json对象转换为json字符串

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